COMPOSITE. (COMPOSITE FAMILY.) 
211 
* * * Heads in a compound corymb terminating the simple stem, showy: 
leaves thickish, mostly feather-veined from a strong midrib. 
12. S. rigid a, L. (Rigid Golden-rod.) Rough and some¬ 
what hoary with a minute pubescence; stem stout (3P-5° high), very 
leafy; the short compact clusters densely corymbed at the summit; 
leaves oval or oblong , or the upper ovate-oblong and closely sessile by 
a broad base, slightly serrate, the uppermost entire, veiny, thick and 
rigid ; heads about 34-flowered, the rays 7 - 10.-- Dry soil, Connect¬ 
icut to Michigan. Heads large. 
13. S. Ollioensis, Riddell. (Ohio Golden-rod.) Very smooth 
throughout; stem wand-like, slender, leafy; stem-leaves oblong-lance¬ 
olate , entire, flat , closely sessile, the lower and the radical elongated, 
slightly serrate towards the apex, somewhat veiny, tapering into long 
margined petioles; heads numerous in a flat-topped compound cor¬ 
ymb, on smooth pedicels, 16 — 20-flowered, the rays 6 or 7. Moist 
meadows or prairies, W. New York to Ohio and Indiana. Plant 2° 
— 3^ high ; the root-leaves 1° long ; the upper reduced to 1' -2', with 
rough margins, like the rest. Heads smaller than in any other of this 
section, scarcely one third the size of those of No. 12. 
14. S. Riddellii, Frank. (Riddell’s Golden-rod ) Smooth 
and stout, very leafy ; the branches of the dense corymb and pedicels 
rough-pubescent ; leaves linear-lanceolate , elongated , entire, acute, 
partly clasping or sheathing, conduplicate and mostly recurved , the 
lowest elongated-lanceolate and tapering into a long keeled petiole, 
obscurely 3-nerved ; heads very numerous in close clusters, aggregated 
in a spreading flat-topped compound corymb, 20 - 24-flowered, the 
rays 7 -9. — Wet grassy prairies, Ohio to Wisconsin. — Stem 2°- 3P 
high. Heads larger than in the last, 2"-3" long. Stem-leaves 4'- 
& long, grass-like, upright and partly sheathing at the base, then 
gradually recurved-spreading. 
15. S. lion gilt onii, Torr. & Gray, ined. (Houghton’s 
Golden-rod.) Smooth; stem rather low and slender; leaves scatter¬ 
ed, linear-lanceolate, acutish, flat, entire, tapering into a narrowed 
slightly clasping base or the lower into margined petioles; heads sev¬ 
eral, crowded in a small nearly simple corymb, 20 - 30-flowered ; the 
rays9 or 10. — North shore of L. Michigan; collected in the Michigan 
State Survey. Aug. - Stem 1° -1£° high. Leaves smooth, but not 
shining, rough margined, 3»-5» long, 1-nerved, or the lower very ob¬ 
scurely 3-nerved above. Corymb minutely pubescent. Heads large, 
nearly J' long, not very numerous. Seales of the involucre obtuse, 
minutely ciliate. 
* * * * Heads in one-sided more or less spreading or recurved ra¬ 
cemes: leaves veiny, not Cribbed. 
- Leans thickish or fleshy, very smooth and entire, elongated, obscurely 
veiny: heads rather large : natives of salt marshes. 
